Warning Cisco strongly advises against using unsupported Cisco IOS commands, even if described, because such commands can have undesirable effects upon the performance of the Cisco CMTS. In particular, Cisco advises against using any unsupported commands that pertain to service-policy or to Modular Quality of Service command-line interface (MQC) while Parallel Express Forwarding (PXF) is running on the Cisco CMTS. Such commands may cause the Cisco CMTS to hang with unpredictable recovery times.

Unsupported Frame Relay Commands

The following commands are not supported in any Cisco IOS software release.